http://repo.lib.sab.ac.lk:8080/xmlui/handle/123456789/650 2026-04-28T08:10:09Z 2026-04-28T08:10:09Z Rasool, Faisul-ur Hasan, Badrul Jahangir, I.A Ali, Tahir Mubarak, T http://repo.lib.sab.ac.lk:8080/xmlui/handle/123456789/891 2021-01-08T06:05:34Z 2013-01-01T00:00:00Z

NUTRITIONAL YIELD AND ECONOMIC RESPONSES OF SUNFLOWER (Helianthus annuus L.) TO INTEGRATED LEVELS OF NITROGEN, SULPHUR AND FARMYARD MANURE Rasool, Faisul-ur; Hasan, Badrul; Jahangir, I.A; Ali, Tahir; Mubarak, T The field experiments were conducted at Agronomy Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir during 2009 and 2010, to study the Nutritional yield and economics response of sunflower (Helianthus annuus L.) grown under varying levels of nitrogen, sulphur and farmyard manure. The experiment was laid out in a randomized block design with three nitrogen levels (40, 80 and 120 kg/ha), two sulphur levels (30 and 60 kg/ ha) and three FYM levels (0, 10 and 20 t/ha) having 18 treatment combinations with three replications. The plots were given uniform recommended dose of phosphorus and potassium through diammonium phosphate and muriate of potash at the rate of 60 and 40 kg P2 O5 and K2 O /ha, respectively. The soil of the experimental field was silty clay loam in texture, low in available nitrogen and sulphur, high in organic carbon, medium in available phosphorus and potassium with neutral pH. The plant height, leaf area index and dry matter production recorded significant and consistent increase with increase in nitrogen rates from 40 to 120 kg/ ha. Nitrogen rates of 80 and 120 kg/ha at par with one another, significantly increased the total number of achenes/capitulum, number of filled achenes/capitulum and 1000-seed weight over 40 kg N/ha. The luxurious seed yield (2.5 tonnes/ha) was recorded with 120 kg N/ha which remained at par with 80 kg N/ha (2.4 t/ha) and net returns (Rs. 53793), B:C (2.1) ratio was higher with 120 kg N/ha. Application of 60 kg S/ha recorded maximum seed yield (2.42 tonnes/ ha) and net returns (Rs. 49115). Same dose of treatment also recorded higher oil content and oil yield. Application of FYM @ 10 and 20 t/ha improved seed yield up to the tune of 9 and 15% over no application, respectively. With net returns of Rs. 49093 FYM @ 10 t/ha proved more profitable. Available nitrogen recorded was highest with treatment combination 120 kg N+60 kg S+20 t FYM/ha and lowest with 40 kg N+30 kg S+0 t FYM/ha. Similar trend was observed for available sulphur.

2013-01-01T00:00:00Z Priyadarshani, N.D.N Amarasinghe, M.K.T.K Subasinghe, S Palihakkara, I.R Kumarasinghe, H.K.M.S http://repo.lib.sab.ac.lk:8080/xmlui/handle/123456789/889 2021-01-08T06:00:43Z 2013-01-01T00:00:00Z

EFFECT OF ORGANIC AND INORGANIC FERTILIZERS ON BIOMASS PRODUCTION , OIL YIELD AND QUALITY OF VETIVER (Vetiveria zizanioides L.) Priyadarshani, N.D.N; Amarasinghe, M.K.T.K; Subasinghe, S; Palihakkara, I.R; Kumarasinghe, H.K.M.S A field experiment was conducted at Medicinal Plant Garden, Research and Training Facility, Faculty of Agriculture, University of Ruhuna to find out most suitable fertilizer combination for higher growth, yield and quality of Vetiver. Different proportions of organic and inorganic fertilizers such as inorganic fertilizer alone, compost: inorganic fertilizer (1:3), compost: inorganic fertilizer (1:1), compost: inorganic fertilizer (3:1), compost alone and control (top soil: sand-1:2) were used as treatments. Growth, yield, oil content and quality parameters were taken 9 months after planting. Compost: inorganic fertilizer (3:1) mixture showed significantly higher shoot and root dry weights, number of leaves and tillers at 9 months after planting. Compost: inorganic fertilizer (3:1) mixture also showed significantly higher amounts of β– Vetivenene, Khusimol, and Iso-valencinol contents compared to other treatments. Therefore, compost: inorganic fertilizer (3:1) could be used as optimal fertilizer mixture for higher biomass production, oil content and quality of Vetiver.

2013-01-01T00:00:00Z Mendis, Sachintha Edirisinghe, Jagath C http://repo.lib.sab.ac.lk:8080/xmlui/handle/123456789/885 2021-01-08T05:40:49Z 2013-01-01T00:00:00Z

WILLINGNESS TO PAY FOR RICE TRAITS IN KURUNEGALA AND HAMBANTOTA DISTRICTS: AN APPLICATION OF A SPATIAL HEDONIC PRICING MODEL Mendis, Sachintha; Edirisinghe, Jagath C The common understanding by the research community is that farmers like to adopt highyielding varieties. While this is true in general, we often see that some high-yielding varieties are not accepted by farmers. The reasons for such can be many. In this study, an attempt is made to verify whether there are any other traits that farmers seek in a paddy variety. We select several traits including those related to yield and production aspects as well as ultimate consumer preferences, and assess their relative importance by way of willingness to pay. This is achieved by estimating a Hedonic Pricing model. We further hypothesise that there are spatial relations in the willingness to pay for such traits and incorporate that into the analysis which resulted in a Spatial Hedonic Pricing Model. Data for the study was collected by using a pretested questionnaire from 148 farmers in Kurunegala and Hambantota districts. The estimated function confirms that there is a spatial relationship in paddy prices by a significant spatial correlation coefficient in the order of 0.35. Therefore, the estimated marginal willingness to pay values is corrected for the spatial correlation. These estimates provide us insights on characteristics other than yield such as empty seed percentage of seed paddy, disease resistance, and demand conditions of the ultimate consumer(types of rice), that farmers consider in choosing paddy varieties.

2013-01-01T00:00:00Z Wongnaa, C. A http://repo.lib.sab.ac.lk:8080/xmlui/handle/123456789/883 2021-01-08T05:38:50Z 2013-01-01T00:00:00Z

ANALYSIS OF FACTORS AFFECTING THE PRODUCTION OF CASHEW IN WENCHI MUNICIPALITY, GHANA Wongnaa, C. A The study considered the determinants of cashew production with special reference to cashew production in Wenchi Municipality of Brong-Ahafo Region of Ghana. Data collection was through well structured questionnaire administered on 140 respondents selected through random sampling technique. The methods of analysis used were descriptive statistics and production function analysis using the Ordinary Least Square (OLS) criterion to estimate the parameters of the production function. Results showed that majority of the farmers were ageing and 55.7% of them have a maximum of five years of cashew farming experience. Also there was high level of illiteracy as about 61.4% of total respondents have no formal education. Farming was majorly on subsistence level as the mean farm size was 3.33 acres. Results further showed that farm size, fertilizer, pesticides, pruning, education and contact with extension officers are positively related to cashew output while labour and years of experience are inversely related.

2013-01-01T00:00:00Z